Apparatus for producing corrugated board



April 27 ,'1926. 1,582,579

. H. A. CUMFER APPARATUS FOR PRODUCING CORRUGATED 5WD Filed March 22,1923 s Sheets-Sheet 1 r Tia/821w):- 7a 1 {71 656 (0721/16 'zawfea;

H. A. CUMFER APPARATUS FOR PRODUCING CORRUGATED BOARD A ril 27, 1926.1,532,579

, Filed Ma ets-Sheet 2 71/? f2 2 65a Eng 1 6201772 H. A. CUMFER'APPARATUS FOR PRODUCING CORRUGATED BOARD Filed March "22, 1.923 .5SheetsSheet 3 f 4 Fa. a.

Patented A nea ices.

- outrun lar er-a2 HARRY A. comma} or 1.58am arena oFFicn.

CHICAGO, ILLWGIE, MEIGE'OR 0F ONE-HALF TO ALBERT D. @TEWART, 0FHUTCHQZHSOZQ, muses.

'- Erasmus sen. rnonucmu connuenrnn :eogmn.

v Application filed mm; as, was. Serial no. scenes.

- To all whom it may concern: Be it known that K, Hes er KCUMFER,

a citizen of the United States, residing in the city of Ghicago countyof Cook, and

' State of Tillinois, have invented certain new and useful Improvementsin Apparatus for Producing Corrugated Board, of which the following is aspecification. I 5 p This invention relates to improvements in an aparatus for producing a corrugated bear and refcrsmore parttzuhirly toamachine in which separate p es on layers of sheeted material areunitedltogether to produce a'corrugatcd" construction utilized indifferent arts or in the making at boxhoard,

packing boxes, protective ms'ulations in packing, bottle caein e, and inthe place of metallic or wood late in constructing walls to be.plasterodor cemented. The apparatus in its broader aspects has to dowith the producing of a corrugated sheet utilized in mnunierable 'waysand varying in its construction according to the use to which it is tobe put.

This application is in part a continuation of previousapplicationssxerial No. 504,289 filed September th, 1921,- since maturedinto Patent Number 1,525,071 and Seriai hie.

582,344 filed August 17th, 1922. v

Among the'objects of the invention are to provide an apparatus in whichtwo sheets of -material are fed to the machine,- the upper sheet beingcontinuously 'corrugatedand erforated and then united to a base'oraching sheet to \vhich has been. applied an adhesive substance which mayor may not be of waterproofing character; to provide an apparatus inwhich subsequent to corrugating the sheet-is i'cd throu'ghthvenmchinewhile held in its corrugated forni by an endless belt arrangement whichprevents the stretching out of the corruga'ted' portions; to providcanapparatus which permits a more rapid production of corrugated shcctedmaterial and one in which a corrugated sheeted substance is produced entailing less expense and at the same time a more perfect product thanhas heretofore been possible.

Fig. 1 is a side view of the apparatus; Fig. 2 is a plan View of theapparatus 1 shown in'Fig. 1;

Fig. 3 is an enlarged deteil-view showing I the corrupting, cutting anduniting units;

l of the sheet cut accordin -which passes between the two-rolls.

7 which cooperates with the transverse bars died orm or construction;

Fig, 5 is a fee mentary detail of a per;

,tion of the sheet s owing the method of cut.-

tingaccordingitothe preferred form; Fig. 6 is e pers ective-view of thesheet 00 cut according to t e preferred -methocl;

Fig. 7 isja perspectiveview pi a-portion tothe modified method'ofcutting shown in Fig. 4'

' Fig. 8 is an enlarged slitting or cutting knives to reduce an in-'-cision such as that showirin ig'. 5; Fi 9 is a view taken. along. theline 9-9 in Fig. 6; and

10 in Fig. 7.

Referring to the drawings, the apparatus consists essentially-of amachine the elements of which are supported by frame membersl. At oneend of the machine are positioned reels upon which rolls of paper 2 and3 are carried. These reels are supported wOl'l any type of suitablestandard shown at t. The paper may consist of any suitable stock such asthat termed as looxboard or chipboard, or innumerable other types ofmaterial of varying grades accordin to the character of the corrugatedsheet w ich is who made.v The upper sheet 2 fed from the roll 2 is fedover a guide rollf'et 5 and between corrugating elements whichconsistzof an upper corrugating roll Band s, lower corrugating roll 7.Over the upper ,corrugating r011 runs an endless corrugating elementconsisting of transverse bars 8 connected by chaiuli'nksi); Thetransverse bars 8 of this corr'ugeting belt register with thedepressions between the teeth on the lower corrugating roll 8'andproduce right angle corrugations in the shee tr 12 1echaracter of: thecorrugations will vary according to the 'shapcof the transverse barswhich produce the corrugations in the sheet. 7 A rounded or squarestructure may be formed by varying the surface of the bars contactingwith thesheet. The character of the corrugation's will be varied also bythe configuration or" the lower corrugating roll ice inproduclng thecorrugated structure After receiving the corrugatmns the sheet conformswith the surface configuration of detail viiv of the es Fig. 1c is sView talre'n along'the line 10- 1 the 0;-dless corrugating belt and iscarried along with the belt in its travel. It remains in this relationcontinuously'in its entire that shown at- 1?! in Fig. 5. and positionedupon the ridges or corrugations of the upper sheet in an alternatemanner such as tnat shown in 1 ig. 6. During the cutting or tne sleetthese knives contact with lugs 1 mounted upon the upper roll it..\i10l'll0- ing slit in this manner the corrugated sheet is united to anadhesive coated sheet which i applied to the lower corrugations.

Explaining now the travd of the lower act which is applied as a base tothe corrugated sheet: Stock reeled from the roll 3 ted over guide rolls1?) and into a vat of adhesive material shown at, I A verticaladjustable inunersin; roll 17 serrcs to guide the sheet beneath thesurface of the coating liquid and is adjustable by means of a handle 18.The adhe ive coating may consist ot' pitch materials. bituniens. orasphaltic sul'istances. all of which are waterproofing in character. ornmp comprise glues, or Stli -eous adhesives which may have thewaterrooting characteristics of the former adlltl.-.i\'0.

Jitter wing iinn'tersed in the coating vat, the sheet directed betweendoctor blades in which scrape the excess coatiw suln tana'o ir n: thestu'tace of the sheet. l then passed on to a belt 20 running over thert. ure roll 21. Prior to the application of the sheet to the surface ofthe belt there applied to the belt a. substance to prevent the sheetfrom adhering thereto. This substance may con ist of a liquid or a drypowder which will give the belt the necessary nonmlhesive chattcteris'tic; where a. liquid asphaltic binder is used as a mating ad nsire, water h' been found to he a satis" Lory non-adL- ivc. liquid. itcools and 5 the asphaltic and prevents it adhering; to belt in itstravel. With other adhe'ive 1n terials it las been found more advisableto use a t'mwdered substance such as graphite, tal or ther n'iaterialswhich have the characteri tics of preventing the coating substance tro tadhering to the supporting belt .50.

."rhorc I pressure roll :11 a setontl pressure roll :;f between whichthe corrugated and the tie: base sheet are passed and united. substancesets fixedly hind- I z 1.. mg the two elements. they 1730.81.35; l,being carriet. along h :iurans ol' the .ed bene th a oil 2 upon aremounted lu s or punchc 2 \ViliLll contact l s t *"l 'il se unit a ouei..upp.,r u lot |\4, iunclnng lugs are p 53UO1ld '1Ii the roll 23 so asto down the free ends shown in Fig. 5, formed by inea. tingknives 11. asshown in Fig. intu tion of the punching elements is to do the free endshgztlllifl the ha e or ad ll(t' l\'(: coated surface of the lower Jsht tand cause then] to adhere tltt'tltl't) to produce the construction asshown in F3". 3. pressing of these t'rt-e ends 0: 1 slot on the .f'lt-sor the depre; which a relat vtlv plastic substarce such as plaster willfiow and become set when dried. thus l-:e .'in;r the su stance morereadily to the surface of the trorrugate l sheet.

From the punt-hing unit th sh et proceeds to a. cutting roli it) uponwhich is n'iuunted .a plate 27 rotated at a predetcriniiud rate,

in order to ut the sheetinto units of the de- -sired length.

Front the cutting unit the sheets are it'd over oir-sever bolts 2;running" av 2.) Will ll ai mount l Hunt tra! The opposite llull il ill ii ilkjfk the dr con rev su'pptuting belt ii runs, ct rt'n. ill while theendless colt. nt: helt ststine oi the transverse bars 8 count-etc chainlir. gating r.

f) is cars ,1 b the upper (or not c roll 33:? pnei- 0 have verti handwheei between the upper and 1- spot-tire units. like heel ll controlsthe functioniw; oi. the severing plate by means of which the units aretut into the desired lengths.

5 root a shaft of construction eel upon the type of a somewhatparticularly drawn to an apparatus soul" the; plan view shown in Fig.

svo

loss iigid shsoi; thou that shows in lg; nluralilyj-of, spaced apart-;trans'versely on does, however, give the plastic suhsiance which isapplied the corrugated sheet relatively larger keyiug'or lockingelements which prevent'the plastic substance "lirom being detachedtherefrom. v5

llua iiiach-iae'oi this characterit will be og prsciatedthas isessential shat all oh. th s dams be driven iii timed relation, andreason. power isia plied from a such as the moior sown at $0 to vsthafdifiereuiial gearing dia rammciiically shown at 41, the power beinglarausmitied therefrom through gears 42 and ior -: 23 to shaft, aspositioned longitudinally of she; apparatus, Upon this shaft are mouiiicdbeveled gears l5 meshing with amass beveled gears 46 mounted upon the'sha oi. the lower rolls of the respcc-' tiva uuits. The details of thisdrive are purposely omitted, as they are obvious from I 2, it beinge1asouciul onl to show diagrammatically ihst .tha, uoiis f dziction intimed relation-to prevac oily uneven feeding of the shoots with theapparatus.

The description of the invention has beien making a plcsier board lo heused in place of wood or metal lath, but it will be noted ease whileproduct has been described for that surpass of disclosir the features ofthe invention, in its bro er aspects the :iiaveiitioii includes theforming of a corrugaisd' siu'uctui'e in which the corrugated s iesi'l'isappii'ed to an adhesive coated base. furiher feature of the machine isthe facflhai the corrugatingv element remains continuously with thecorrugations of the sheet during its entire passage through the machine,thus preventing the deformation ofizhe corrugations. The use to whichthe corrugated sheet is to be put will determine the character of thecom atlous and the type of paper. stoclz vvhich 15 so be used, also theunits of varied co produce the f the apparatus may bs desired structure.

l". claim as my invention:

1, A. machine for making corrugated board comprising oorrugating rollsfor corrugaiiug a sheet, means for making a series of spaced apart.transversely extending 111-- cisiorls iadho. continuously movi ngcorrugated a; predetermined longitudinal "uteri/sis, a COHiSmUtI-HISbelt providing trans- 'FGISQly extending. bars insertable in said corrualioas, means for coating a plain surface slices; with an adhesive, andmeans for fixedly uniting said coated. sheet with the comigaied sheet ioform a unitary struc airs A. hoard comprisiag corrugaiijiga], eet,

machine for g corrugatmg elements for 'iizcans for making a thecorrugations,

making corrugated 9 intervals, a continuous versely extendingharsmsertoolsm said corvtending incisions in a continuously moving sheetat lon itudinal intervals and in the crests or" said corrugations, anendless elemerit ,havmg transversely extending bars regisfering withsaid corrugations jduring the travel ofthe sheet through the machine,

means for coating a plain surface sheet Will an adhesive, and means forfixedly uuitmgihe bass portiossof the corrugated do ressions formed inthe sheet with the ad esive. coated sheet,

3. machine of-tho character described, comprising corrugating' rollshaving alternate' extensions -and depressions for corrugatmg a movingshesi, means fordriving the sheet, and the rolls, drivenmieans'to holdthe corrugations in place after they have left the corrugaiing rolls,means fordriving another sheet in a path parallel with the movement ofthe corrugated sheet, and

means for uniting the sheets together before ilte corrugations leave thecorrugation holdmg means.

4;. A machine of lzhe character described,-

comprising corrugating rolls, an endless means having bars to enter therespective corrugations formed in the sheet and to move therewithafterthe sheet to be corru--' gated has-left the rolls, spaced apartrolls between Whichflia sheets and endless means pass, the latter rollscarrying slittingmeans to perforate the ridges,

corrugatiops in place after they leave the-- rolls and to assist indriving the sheet, means for slitting portions of thejridges formed thecorrugations, means for uniting a second sheet adhesively coated beforethis corrugations are released by the holding means,and meansfor causingparts of the slit portions to be fixedly attached to the second sheet, gg

" 7. A machine for making corrugated board comprising corrugating'rollsifor corand means for uniting a second sheet to the corrugatedsheet before the corrugated sheet leaves the ma-' 5. A machine of thecharacter described,- corru ating' coated before the rugating a sheet,means for'makin'g a series of spaced apart incisions in the continuouslybelt providing transmoving corrugated sheet at predetermined A machinefor il'lfiiilflg corrugated hoard comprising corrugating rolis forcorrugating a sheet, means for making a 'es of spaced apart incisions inthe continuously movingcorrugated sheet at predetermined intervals :1continuous helt Ailing transr'e sely extending liars insertaole in saidcorrugations, means for coating a plain surface sheet with an adhesive,and means for fixedly uniting the base portions of the corrugatedrlcprcss'i'ir formed in the sheet "with the so llQSiVQ coated sheet.

U. .-i machine of th character described, comprising corrugatim; rollsfor corhwating a moving sheet, driven means registering; with thecorrugations utter they leave the corrugating rolls to hold thecorrugeiions in place, rcn'iovahle slitting means contacting removablecontacting means mounted on rolls for perforating the crests ofcorrugations, and a conveyer for'removing the perforated sheet.

161A machine for making corrugated hoard comprising corrugatinc rollsfor corrugatingr a continuously moring: sheet, means for making a seriesof spaced apart incisions in the sheet at predetermined intervals, 2continuous belt providing transversely tending bars insertable in saidcorrugations. 11. A machine for making corrugated comprising corrugatedrolls fo cor- '1 rnating a continuously moving sheet, means inn ting-aseries of spaced apart inci ions in thcshcct atpreclcterininctlintcrrals, coniprising rolls carrying removable slitting means andcontacting with rolls having removable contacting men ns mountedthereon, a continuous lielt providing transversely extending liarsinsertaole in said corru tions.

1:2. A machine for corrugating a moving sheet, comprising corrugatmgrolls having alternately disposed projections and depressionsregistering to produce the corrugations. zj: forwardly moving meant:registering with the corrugations to hold their; in place, pmforating'means reinovably mounted on a cutting roll and adapted to contact platesremovahly mounted on a bed roll, and projecting: therefrom, the radiusof the projec .tion allowing the perforating means to always registerthe same distance from the projection 21. the point of registration.

A machine for making corrugated board comprising corrugating rollsmlni'itctl to corrugate an advancing sheet, rolls having removahlypositioned thereon a series of spaced apart slitting members contactint,plates removahly posi" neil on other rolls, one adapted to lie in acircular plane different than the plane of its periphery, and the otherhaving a substantially fiat surface.

, HARRY A. CUMFER.

